--- title: "Bulk Supply Industrial Weatherproof Roofing Screw Caps" description: "Bulk Supply Industrial Weatherproof Roofing Screw Caps — Roofing & Siding Screws. Standard: DIN, GB, GOST, Grade: 4.8. MOQ 5,000 pieces, US$0.012 – 1.20." url: https://engineeringhardware.com/product/bulk-supply-industrial-weatherproof-roofing-screw-caps/ source: Engineering Hardware & Fasteners --- # Bulk Supply Industrial Weatherproof Roofing Screw Caps [![Bulk Supply Industrial Weatherproof Roofing Screw Caps](https://img.engineeringhardware.com/Bulk-Supply-Industrial-Weatherproof-Roofing-Screw-Caps.webp)](https://img.engineeringhardware.com/Bulk-Supply-Industrial-Weatherproof-Roofing-Screw-Caps.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Screws › Roofing & Siding Screws](https://engineeringhardware.com/fastener-products/screws/roofing-siding-screws/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/bulk-supply-industrial-weatherproof-roofing-screw-caps.md) | **US$1.20**5,000–999,999 pieces | **US$0.012**1,000,000+ pieces | | --- | --- | MOQ 5,000 pieces · Final price confirmed in your quote - **Material:** UV Stabilized Modified Polypropylene - **Head Style:** Round - **Standard:** DIN, GB, GOST - **Grade:** 4.8 - **Outer Cap Diameter:** 19 mm/0.748 Inch - **Inner Hexagon Maximum Inner Diameter:** 17 mm/0.669 Inch - **Outer Diameter of Inner Hex Rim:** 10.6 mm/0.417 Inch - **Overall Total Height:** 6 mm/0.236 Inch Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Bulk%20Supply%20Industrial%20Weatherproof%20Roofing%20Screw%20Caps%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fbulk-supply-industrial-weatherproof-roofing-screw-caps%2F) Specifications are as listed for this product. Engineering Hardware & Fasteners confirms ratings, mating parts, compatibility, packing and lead time with you before you order. ## Specifications | Customization | Available | | --- | --- | | Material | UV Stabilized Modified Polypropylene | | Type | Hexagon Head | | Groove | Hexagon | | Connection | Common Bolt | | Head Style | Round | | Standard | DIN, GB, GOST | | Grade | 4.8 | | Product | Hinged Screw Cover Caps | | Outer Cap Diameter | 19 mm/0.748 Inch | | Inner Hexagon Maximum Inner Diameter | 17 mm/0.669 Inch | | Outer Diameter of Inner Hex Rim | 10.6 mm/0.417 Inch | | Inner Hex Across Flats | 7 mm/ 0.276 Inch | | Overall Total Height | 6 mm/0.236 Inch | | Cap Wall Thickness | 1.18 mm/0.0465 Inch | | Fit Screws | #8 #10 #12 #14 | | Application | Indoor,Outdoor,Roofing | | Standard Stock Colors | Pure White,Light Gray,Dark Charcoal Gray,Pure Blac | | Transport Package | Bulk in Bag or Box Package | | Specification | Small Medium Large | | Origin | China | | HS Code | 3923500000 | | Production Capacity | 10000 T/ Year | | Package Size | 10.00cm * 10.00cm * 8.00cm | | Package Gross Weight | 1.250kg | | Packing type | 1. Bulk packing in wowen bag. | | Our popular products include | drywall | | MOQ | 1 ton each size, sample order is no problem | | Category | [Roofing & Siding Screws](https://engineeringhardware.com/fastener-products/screws/roofing-siding-screws/) | ## Technical parameters | Hex Roofing Screw Caps Full Specification Table | | | --- | --- | | Classification | Detailed Information | | Product Full Name | Hex Roofing Screw Caps | | Core Product Features | 1.Hexagonal Inner Cavity, Perfect Fit For Standard Hex Roof Self-Drilling Screw Heads 2. Uv-Stabilized & Anti-Aging, Resist Sun Cracking, Fading And Brittleness Outdoor 3. Full Weatherproof & Waterproof Barrier, Block Rain, Snow, Dew, Salt Mist For Coastal Projects 4. Anti-Corrosion Protection, Isolate Screw Heads From Oxygen & Humidity To Avoid Rust Streaks On Roof Panels 5. Decorative Color Matc | | Main Product Materials | 1. Standard Plastic Caps: Uv Stabilized Polypropylene (Pp), High Density Polyethylene (Hdpe) 2. Premium Plastic Caps: Uv Modified Nylon (Pa6), Abs Plastic 3. Metal Waterproof Caps: Galvalume Steel, Aluminum Alloy, Galvanized Carbon Steel 4. Optional Auxiliary Seal: EPDM Rubber Inner Gasket For Enhanced Water Sealing | | Complete Product Parameters | 1. Applicable Screw Hex Size: #8, #10, #12, #14 Hex Tek Screws, Inner Diameter 4.2mm-6.3mm 2. Cap Outer Diameter: 12mm, 14mm, 16mm, 18mm Custom Sizes 3. Cap Height: 8mm-12mm Standard, Adjustable Per Drawing 4. Available Standard Colors: White, Black, Dark Green, Red, Blue, Gray, Beige; Custom Pantone Color Supported 5. Working Temperature Range: -20°C To +80°C 6. Uv Service Lifespan: 8-15 Years Fo | | Standard & Custom Packaging | 1. Small Retail Pack: 50Pcs / Polybag, 10 Bags Per Small Color Box 2. Wholesale Bulk Pack: 250Pcs-1000Pcs Per Export Carton 3. Carton Specification: 25Kg-30Kg Per Export Carton, 5-Layer Corrugated Export Carton 4. Label Customization: Brand Logo, Item Name, Quantity, Color, Specification Printed On Carton & Bag 5. Outer Shipping Pallet: Standard Wooden Pallet With Stretch Film Wrapping For Sea/Air | | Production Cycle | 1. Sample Production Lead Time: 3-5 Working Days 2. Mass Production Standard Lead Time: 15-20 Working Days After Receiving Deposit 3. Rush Order Lead Time: 7-10 Working Days (Extra Rush Fee Applicable) 4. Large Tonnage Order: 25-30 Working Days | | Minimum Order Quantity (Moq) | 1. Stock Standard Color Caps: 10,000 Pieces 2. Custom Color / Custom Size Molding: 50,000 Pieces 3. Metal Galvalume Screw Caps: 1 Ton 4. Sample Moq: 500-1,000 Pieces For Quality Test | ## Description Bulk Supply Industrial Weatherproof Roofing Screw Caps is part of our roofing & siding screws range (Screws). ### Key details - **Type:** Hexagon Head - **Standard:** DIN, GB, GOST - **Material:** UV Stabilized Modified Polypropylene - **Grade:** 4.8 - **Head Style:** Round - **Groove:** Hexagon - **Connection:** Common Bolt - **Application:** Indoor,Outdoor,Roofing Available configurations include material, head style, standard, grade and outer cap diameter. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 5,000 pieces at US$0.012 – 1.20 per piece. Send one inquiry with the part number, quantity and destination, and Engineering Hardware & Fasteners confirms size, thread, material, grade, finish, price, lead time and shipping, checks the goods before dispatch and ships them to you. ## Frequently asked questions ### What is the minimum order quantity (MOQ) for Bulk Supply Industrial Weatherproof Roofing Screw Caps? The listed minimum order is 5,000 pieces, at US$0.012 – 1.20 per piece. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size. ### How does the price change with quantity? Volume pricing: US$1.20 for 5,000–999,999 pieces; US$0.012 for 1,000,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote. ### What are the main specifications of Bulk Supply Industrial Weatherproof Roofing Screw Caps? Type: Hexagon Head; Standard: DIN, GB, GOST; Material: UV Stabilized Modified Polypropylene; Grade: 4.8; Head Style: Round; Groove: Hexagon. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include material, head style, standard, grade and outer cap diameter. Size, thread, length, material and grade, surface finish, head marking, packaging and labels can be quoted to your specification or drawing. ### What is the lead time and how is it shipped? Lead time depends on quantity and customization and is confirmed in your quote. Engineering Hardware & Fasteners checks the goods before dispatch and ships by express, air or sea; mixed orders can be consolidated in one shipment. ### Which other roofing & siding screws are available? The Roofing & Siding Screws category lists 389 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/screws/roofing-siding-screws/](https://engineeringhardware.com/fastener-products/screws/roofing-siding-screws/) How we work ## Specified, checked and shipped by Engineering Hardware & Fasteners Engineering Hardware & Fasteners supplies bolts, screws, nuts, washers, anchors, rivets and fastening hardware to equipment makers, contractors, distributors and maintenance teams. Orders go through one controlled process: size, thread, material, grade and finish confirmed, samples approved, dimensions, thread fit and plating checked before packing, then packed for export — standard or made to drawing. - DIN, ISO, ASTM, ANSI, JIS and GB standard parts - Non-standard parts made to your drawing - Dimensions, thread gauges and plating checked before packing - Export cartons and pallets, consolidated mixed orders - Samples available for approval before mass production [![Production floor](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-01-production-floor-1024x683.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-01-production-floor.webp) Production floor [![Inspection bench](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-02-inspection-bench-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-02-inspection-bench.webp) Inspection bench [![Sorting & packing](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-03-sorting-and-packing-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-03-sorting-and-packing.webp) Sorting & packing [![Parts warehouse](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-04-parts-warehouse-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-04-parts-warehouse.webp) Parts warehouse [![Sample review](https://engineeringhardware.com/wp-content/uploads/2026/11/office-02-office-sample-review-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/office-02-office-sample-review.webp) Sample review [![Sales office](https://engineeringhardware.com/wp-content/uploads/2026/11/office-01-daily-sales-office-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/office-01-daily-sales-office.webp) Sales office [More about us →](https://engineeringhardware.com/about/) · [Request a sample or custom quote →](https://engineeringhardware.com/contact/) ## Request a quote for this product ## Related products [All Roofing & Siding Screws →](https://engineeringhardware.com/fastener-products/screws/roofing-siding-screws/) [![Assembled Roofing Nail/Roofing Screw 63-120mm](https://img.engineeringhardware.com/Assembled-Roofing-Nail-Roofing-Screw-63-120mm.webp)](https://engineeringhardware.com/product/assembled-roofing-nail-roofing-screw-63-120mm/) Roofing & Siding Screws ### [Assembled Roofing Nail/Roofing Screw 63-120mm](https://engineeringhardware.com/product/assembled-roofing-nail-roofing-screw-63-120mm/) Connection · International **US$1,020 – 1,200**MOQ 2 tons [![3.5-4.8mm (#6-10) C1022A/Q195/Q235/45#/55#/22A Xinruifeng Color Box/Small Box/Bulk Packing 11-150mm Roofing Screw](https://img.engineeringhardware.com/3-5-4-8mm-6-10-C1022A-Q195-Q235-45-55-22A-Xinruifeng-Color-Box-Small-Box-Bulk-Packing-11-150mm-Roofing-Screw.webp)](https://engineeringhardware.com/product/3-5-4-8mm-6-10-c1022a-q195-q235-45-55-22a-xinruifeng-color-box-small-box-bulk/) Roofing & Siding Screws ### [3.5-4.8mm (#6-10) C1022A/Q195/Q235/45#/55#/22A Xinruifeng Color Box/Small Box/Bulk Packing 11-150mm Roofing Screw](https://engineeringhardware.com/product/3-5-4-8mm-6-10-c1022a-q195-q235-45-55-22a-xinruifeng-color-box-small-box-bulk/) Fine Thread/Coarse Thread · DIN, GB, ANSI, ISO **US$1,199 – 1,799**MOQ 1 ton [![2.3X45mm Yellow Coating Screw/Spiral Shank 15 Degree Galvanized Roofing Screw Nail Wire Weld Stainless Steel Coil Nails for Wood Pallet](https://img.engineeringhardware.com/2-3X45mm-Yellow-Coating-Screw-Spiral-Shank-15-Degree-Galvanized-Roofing-Screw-Nail-Wire-Weld-Stainless-Steel-Coil-Nails-for-Wood-Pallet.webp)](https://engineeringhardware.com/product/2-3x45mm-yellow-coating-screw-spiral-shank-15-degree-galvanized-roofing-screw-nail/) Roofing & Siding Screws ### [2.3X45mm Yellow Coating Screw/Spiral Shank 15 Degree Galvanized Roofing Screw Nail Wire Weld Stainless Steel Coil Nails for Wood Pallet](https://engineeringhardware.com/product/2-3x45mm-yellow-coating-screw-spiral-shank-15-degree-galvanized-roofing-screw-nail/) Round Head · DIN, GB, ANSI **US$9.84 – 10.80**MOQ 50 cartons [![8pin Male Female IP67 Waterproof Screw Threaded Plastic Plug Power M12 Connector](https://img.engineeringhardware.com/8pin-Male-Female-IP67-Waterproof-Screw-Threaded-Plastic-Plug-Power-M12-Connector.webp)](https://engineeringhardware.com/product/8pin-male-female-ip67-waterproof-screw-threaded-plastic-plug-power-m12-connector/) Roofing & Siding Screws ### [8pin Male Female IP67 Waterproof Screw Threaded Plastic Plug Power M12 Connector](https://engineeringhardware.com/product/8pin-male-female-ip67-waterproof-screw-threaded-plastic-plug-power-m12-connector/) IEC61076-2-101 · / **US$2.52 – 2.94**MOQ 50 pieces [![Umbrella Head Galvanized Roofing Screw Nails Big Head Top Quality Cheap Wholesales From Tianjin](https://img.engineeringhardware.com/Umbrella-Head-Galvanized-Roofing-Screw-Nails-Big-Head-Top-Quality-Cheap-Wholesales-From-Tianjin.webp)](https://engineeringhardware.com/product/umbrella-head-galvanized-roofing-screw-nails-big-head-top-quality-cheap-wholesales/) Roofing & Siding Screws ### [Umbrella Head Galvanized Roofing Screw Nails Big Head Top Quality Cheap Wholesales From Tianjin](https://engineeringhardware.com/product/umbrella-head-galvanized-roofing-screw-nails-big-head-top-quality-cheap-wholesales/) Roofing Nail · GB **US$1,020 – 1,200**MOQ 25 tons [![Cheap Price 4mm Roofing Screw Nail with Combined Washer](https://img.engineeringhardware.com/Cheap-Price-4mm-Roofing-Screw-Nail-with-Combined-Washer.webp)](https://engineeringhardware.com/product/cheap-price-4mm-roofing-screw-nail-with-combined-washer/) Roofing & Siding Screws ### [Cheap Price 4mm Roofing Screw Nail with Combined Washer](https://engineeringhardware.com/product/cheap-price-4mm-roofing-screw-nail-with-combined-washer/) Cheap Price 4mm Roofing Screw Nail with Combined W · ANSI, DIN, ISO, J… **US$12.00 – 24.00**MOQ 400 boxes [![16×100 16×150 Borosilicate Glass Digestion Tubes Leakproof Screw Top for Environmental Experiment Digestion](https://img.engineeringhardware.com/16-100-16-150-Borosilicate-Glass-Digestion-Tubes-Leakproof-Screw-Top-for-Environmental-Experiment-Digestion.webp)](https://engineeringhardware.com/product/16100-16150-borosilicate-glass-digestion-tubes-leakproof-screw-top-for-environmental/) Roofing & Siding Screws ### [16×100 16×150 Borosilicate Glass Digestion Tubes Leakproof Screw Top for Environmental Experiment Digestion](https://engineeringhardware.com/product/16100-16150-borosilicate-glass-digestion-tubes-leakproof-screw-top-for-environmental/) Glass · 3 Years **US$0.012 – 1.20**MOQ 1 piece [![120mm Galvanized Roofing Screw Nails with Plastic and Iron Washer](https://img.engineeringhardware.com/120mm-Galvanized-Roofing-Screw-Nails-with-Plastic-and-Iron-Washer.webp)](https://engineeringhardware.com/product/120mm-galvanized-roofing-screw-nails-with-plastic-and-iron-washer/) Roofing & Siding Screws ### [120mm Galvanized Roofing Screw Nails with Plastic and Iron Washer](https://engineeringhardware.com/product/120mm-galvanized-roofing-screw-nails-with-plastic-and-iron-washer/) Roofing Nail · ANSI, DIN, GB, JIS **US$7.80 – 8.64**MOQ 200 boxes **US$0.012 – 1.20**MOQ 5,000 piecesGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Bulk%20Supply%20Industrial%20Weatherproof%20Roofing%20Screw%20Caps%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fbulk-supply-industrial-weatherproof-roofing-screw-caps%2F)